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Gata Kamsky vs Boris Gelfand
World Championship Candidates (2011) (rapid), Kazan RUS, rd 2, May-16
Sicilian Defense: Najdorf Variation. English Attack (B90)  ·  1/2-1/2
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 5 OF 5 ·  Later Kibitzing>
Jun-23-11  fightclub: Thanks <dzechiel>, <Once> and <goodevans>. <Once> that's right, I was pleasently surprised that this handle wasn't taken. <goodevans> Yep, I have been doing the puzzles. The only thing with the line I was annoyed was that after 19...Bxd5 20 cxd5 Qxc1, if white doesn't go for Rxc1 then most of the material is still on the board and also seems that black has to retreat the queen after say 21 Qe1. It's just not as satisfying as the other lines. But oh well, a rook up is a rook up.
Jun-23-11  scormus: <Fightclub> welcome, you got off to a good start!

<Once> you make a fair point about the advantage us amateurs have, knowing its a puzzle we are loking for something dramatic (and feel swindeled if there isnt). The OTB players dont have that luxury

Jun-23-11  VincentL: "Medium".

I think that 19.....Bxd5 may win.

If 20. exd5 then 20.....Qxc1 21. Rxc1 Rxc1+ 22. Ne1 Rxf5 and black has 2 R for Q with a better position.

If 20. Rxd5 Qxd5 21. cxd5 Rxc1+ 22. Ne1 Rxf5 with a similar result.

Any other move by white on move 20 simply loses the knight.

Is this it? Letīs check.

Jun-23-11
Premium Chessgames Member
  Once: <scormus> I think the other thing that happened OTB is that the position went from positional to tactical without black doing a great deal.

In effect, Kamsky as white made a series of weakening moves which gave Gelfand an opportunity for a tactic. Kamsky played 17. Nd5, 18. c4 and 19. exf5 - all logical looking moves but they gifted black a tactic.

And that may be part of the reason why Gelfand didn't see it. At this level of chess you don't expect your opponent to be quite so kind. You expect to have to fight for your tactical opportunities.

Jun-23-11  abuzic: <Patriot>: I agree with your both comments. I meant to point that good moves serve many purposes (defence, attack, pawn structure, end-game...) and that winnig opportunities in such high level players may not recur in the same game.
Jun-23-11  sevenseaman: To many a poster who has been critical of Kamsky and Gelfand I have this to say. Agreed both played somewhat mechanically in the later stages but we have to allow that GMs are human too.

I have been wondering just how high a percentage of games fall to the back rank trap. It could include the smother mate and largely perhaps the Anastasia's mate as well.

Recently we had a spate of games taking a hit via Bxh7+ and the follow up by a ram from h8.

A better placed player not having a move to guard against a back rank mate some times feels compelled to agree a draw.

And yet it is never axiomatic that a defender will weaken his P structure in font of his K merely to avoid the back rank peril.

Its a beautiful game that loves to live with inherent contradictions, paradoxes.

Jun-23-11  DrMAL: Yes, Kamsky should have played 19.Rc3 and blundered with 19.exf5 then Gelfand missed simple 19...Bxd5 for a win. All part of the ridiculous rapid/blitz format to decide WC candidates!
Jun-23-11  benjaminpugh: Clicking through this game it seemed like 18...f5 was played precisely to set up 19...Bxd5 if white was foolish enough to take the f pawn, or if 19.Rc3, then 19...fxe4 clearing space for black's bishops and opening the f file for black's rook.
Jun-23-11  DrMAL: I doubt 18...f5 was played with prayer for a blunder, especially since black missed 19...Bxd5! It was likely played to attack e4 and undermine white's strong knight on d5, and force weak doubled pawns on b2 and b3 for a nice position.

After 19.Rc3 fxe4 20.Nd2 black can play 20...Bxd5 21.cxd5 Qd7 to achieve this. The fancier 20...e3 can also result in a similar position after 21.Qxe3 Bxd5 22.cxd5 Qd7 but it also allows white to play 21.Nxe3 or 21.fxe3 for other possibilities favoring black.

Jun-23-11  KingV93: Got this one! Seeing that the White ♔ is stuck in his hole and that the key square can be attacked by Blacks DS♗ led me on the right path. Happy to have seen this as it's rated properly; Medium. And getting a 'Medium' correct is good for me!
Jun-23-11  Ghuzultyy: I guessed Bxd5 but didn't spend much time on it. Good puzzle!
Jun-23-11  mworld: <Once> I think you deserve extra credit for figuring out how it came to be. Your unravelling of the situation invoked Silman's thought process and then you even mentioned him. Nj.
Jun-23-11  wals: Rybka 4 x 64

d 24 : 85 min :

1. (-3.29): 19...Bxd5 20.Rc3 Be4[] 21.g4 g6[] 22.Nd2 gxf5[] 23.b4 Bb6 24.c5 dxc5[] 25.bxc5 Bxc5[] 26.Nb3 Bh1 27.Qf1 b6[] 28.Nxc5 bxc5 29.f3 fxg4[] 30.Kxh1 gxf3 31.Qf2 e4 32.b4 Rcd8 33.Rdc1 Kh8 34.Re3 c4

as per the suggested moves,
19...Bxd5 20.Qxd5,

1. (-4.37): 21.g4 Qc6[] 22.Rc3 Bf6[] 23.Nd2 e4 24.Rg3 d5 25.cxd5 Qxd5 26.Nxe4 Rc1+ 27.Kg2[] Bxb2 28.Rd3 Bd4 29.Rd2 Rd8 30.b4 Qc4 31.Rd3 b5 32.Qd2 Rc2

2. (-4.37): 21.Rc3 Qc6 22.g4 Bf6 23.Nd2 e4 24.Rg3 d5 25.cxd5 Qxd5 26.Nxe4 Rc1+ 27.Kg2[] Bxb2 28.Rd3 Bd4 29.Rd2 Rd8 30.b4 Qc4 31.Rd3 b5 32.Qd2 Rc2

woulld have kept White moving.

Jun-23-11  ColeTrane: white's best chance would have been Qe1
Jun-23-11  WhiteRook48: i got 19...Bxd5 20 Rxd5 Qxd5 21 cxd5 Rxc1+
Jun-24-11  anandrulez: Missing such a move at Classicals is very unlikely at this level . I think this is a rapid game . This is a simple tactics and if a 2700 misses this in classical vs any opponent I would be surprised ! These are moves GM's would find easily on even their "off" days
Jun-24-11  scormus: <Once> positional to tactical, unnoticed. Perfectly explained!
Jun-24-11  LIFE Master AJ: I am pretty sure that this (tiebreak game) was played at an acclerated time control.
Jun-24-11  DrMAL: <Once: <sevenseaman> I think it was played at normal time controls.> No it was the second tiebreaker played at G/25 (http://kazan2011.fide.com/tourview/...). I also feel compelled to write your "analysis" is equally silly regarding some unnoticed shift from positional to tactical. The game was of course both throughout. It often occurs during rapid/blitz games that one player makes a blunder and the other player misses it as well.
Jun-24-11  LIFE Master AJ: I sowed this game Thursday night to John Perciballi - it dod not take him long to find 19...Bxd5. (He is an "A" player, although I am sure he can play at a much higher level. At one point, he defeated me five or six times in a row in training games.)
Jun-24-11  DrMAL: Nice! Sounds like he should play in more tournaments to get his rating up to his play (I should heed my own advice LOL).
Jun-24-11  notyetagm: <dzechiel: <fightclub: Hello Chessgames. Just signed up>

Allow me to be the first to say "Welcome aboard.">

Yes, welcome. :-)

Jun-26-11  LIFE Master AJ: should have been "I showed this game..." (But most know what I meant.)

Sorry for the typo.

Jun-26-11  LIFE Master AJ: BTW, MANY people have sent me an e-mail. You said that you SOLVED this puzzle ... and then asked how Gelfand could have missed such a thing. (?) [And I believe all of you.]

The only thing I can tell you is that pressure DOES affect the mind. AND this game was played at an accelerated tempo ...

Oct-10-11  notyetagm: Kamsky vs Gelfand, 2011

Game Collection: DRAWBACK CHESS: LEFT BEHIND 19 e4xf5?? leaves behind d5-sq for winning 19 ... Be6xNd5!

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